How do scientists use the differences in proteins compare Evolutionary Relationships between organisms?

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis. b. the primary role of microbes on the planet involves causing disease in animals and humans. c. microbes produce vitamins in the intestines. d. microbes play a role in breaking down waste and decomposing dead organisms.

How many cells are our body made of ? ♡

At which location in earth’s interior does the top density continue to increase as thickness decreases?